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Posted to jira@kafka.apache.org by "Sagar Rao (Jira)" <ji...@apache.org> on 2021/02/26 08:05:00 UTC

[jira] [Issue Comment Deleted] (KAFKA-10526) Explore performance impact of leader fsync deferral

     [ https://issues.apache.org/jira/browse/KAFKA-10526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sagar Rao updated KAFKA-10526:
------------------------------
    Comment: was deleted

(was: hi [~hachikuji], can you plz validate my understanding from the above comment whenever you get the chance?)

> Explore performance impact of leader fsync deferral
> ---------------------------------------------------
>
>                 Key: KAFKA-10526
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10526
>             Project: Kafka
>          Issue Type: Sub-task
>            Reporter: Jason Gustafson
>            Assignee: Sagar Rao
>            Priority: Major
>
> In order to commit a write, a majority of nodes must call fsync in order to ensure the data has been written to disk. An interesting optimization option to consider is letting the leader defer fsync until the high watermark is ready to be advanced. This potentially allows us to reduce the number of flushes on the leader.



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